Trail-eating shoe for distance runs on technical terrain Mesh upper provides flexibility and breathability Rugged overlays boost durability and give a secure, supportive fit 9mm drop fights off calf and Achilles fatigue Lightweight foam provides long-lasting shock absorption Firm midsole shank quickens transitions and powers toe offs Sticky, lugged sole delivers biting grip on varying surfaces Impact Brake System gives soft, secure strides on downhill bombs New with box and no smoking